Carsickness? 🥵

Good morning mummies! I have been wondering, anyone of you experienced sudden feeling nauseous + slight difficulty of breathing/uneasiness when you travel in a vehicle? I am in my 3rd Tri alr, but this happened to me twice. First when i was in a van with 14people in it, initially thought probably because it was kinda cramp or that the driver has too many scents in the van cause my partner was also feeling nauseous at that point and claimed it was the scents. The second time happened when i was in the Train travelling for about 15mins, also the same feeling. Is it just me orrr its normal..